BROOKINGS DISCUSSION PAPERS IN INTERNATIONAL ECONOMICS No. 134 REGIONAL AND MULTILATERAL TRADE LIBERALIZATION: THE EFFECTS ON TRADE, INVESTMENT AND WELFARE

This paper explores the impact on economies of trade liberalization under alternative regional and multilateral arrangements: unilateral liberalization; liberalization as part of the ASEAN regional grouping; liberalization as part of the APEC regional grouping; or liberalization as part of a multilateral trade liberalization regime. The paper is based on a Dynamic Intertemporal General Equilibrium model (DIGEM) called the Asia-Pacific G-Cubed Model. It is shown that the long run gains from a country’s own liberalization tend to be large relative to the gains from other countries liberalizing although this varies across countries. It is also shown that there is a significant difference between the effects on GDP (production location) and the effects on consumption per capita of the alternative liberalization approaches across countries. The timing of liberalization is also shown to matter. With open capital markets the gains from credibly announced trade liberalization are realized before the reforms are put in place because there is a rise in global investment which raises the global capital stock. In addition there is a reallocation of capital via financial market adjustment. This paper also demonstrates that for some economies, there can be short run adjustment costs to trade liberalization because resources cannot be instantly reallocated across sectors in an economy. These adjustment costs from own liberalization can be reduced if more countries also liberalize. The nature of the dynamic adjustment suggests that other macroeconomic policies may play an important role during the early period of phased-in trade liberalization. Warwick J. McKibbin Research School of Pacific & Asian Studies Australian National University ACT 2600 Australia or Economics Studies Program The Brookings Institution 1775 Massachusetts Ave NW Washington D.C. 20036 USA JEL Classification 300 1